Poly (Plantronics + Polycom) Features and Specifications Foldable for storage and transport Digital Signal Processor provides full-range digital audio Digitally-enhanced full-range stereo sound Ultra-sensitive digitally enhanced noise-canceling microphone QuickAdjust microphone boom enables you to position the microphone for uniform performance and higher accuracy Digital Signal Processing: 5 channel 16-bit, 48kHz data from USB 24 bit, 100dB signal-to-noise CODEC 32 bit digital audio processing. Headphone Output: 2 channel 48kHz output to headphone Headphone gain stage >80dB range Preset digital EQ-6 bands/channel (stereo) Bass, treble, balance and volume controls 80Hz-12kHz speaker frequency response 28mm speaker diameter Microphone Input: Mono, 16 bit, 48kHz data Preset digital EX-6 bands mono Mic gain stage >50dB range Up to25dB noise rejection (hypercardiod response) 100Hz-10kHz frequency response Electret condenser microphone with –38dVB/Pa sensitivity Ear cushion: 4mm foam Cable length: 10 feet (3 meters) Connection: USB System Requirements Windows 98 Second Edition/Windows 2000: Pentium II 166 Mhz or equivalent 10 MB free disk space Windows 98: 16 MB RAM; Windows 2000: 32 MB RAM SVGA Monitor CD-Rom USB port